A circular loop of wire falls under the influence of gravity toward a wire carry

Question

A circular loop of wire falls under the influence of gravity toward a wire carrying a positive-charge current to the right, as shown in the figure below. The direction of the induced positive-charge current in the loop is... ...clockwise. ...counter-clockwise [none of the above ...no current is induced] If a proton passes through this region (above the wire, where the loop is drawn in the figure) with a velocity directed to the right (parallel to the wire), what is the direction of the force experienced by the proton? up down left right the magnitude of the force is zero

Explanation / Answer

9. relative motion between loop and fixed current carrying cunductor produced current in the loop

In this case magnetic field is in upward direction (out of page) in the loop. Flux increase when reaches to same level. So need to create downward field to oppose. so clockwise direction.

b) E. manitude of force is zero as equal and opposite magnetic field nullified it.

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